Sash-governing appliance.



E. R. LEONARD.

SASH GOVERNING APPLIANCE.

APPLICATION FILED APB..12, 1911.

1,008,041 Patented N011. 7, 1911.

Invenior.

mes.

ELOF R. LEONARD, F WOODCLIFF, NEW JERSEY.

SASH-GOVER-NING APPLIANCE.

To all whom it may concern:

Be it known that I, ELor R. LEONARD, a citizen of the United States and of the State of New Jersey, residing at VVoodcliif, New Jersey, have invented certain new and useful Improvements in Sash-Governing Apaliances of which the followin is a s ecification.

My invention relates to devices for governing window sashes by means of chains and weights, in such a manner that they may be automatically closed in case of fire, and consists in the particulars hereinafter pointed out.

In the drawings Figure l is a vertical sectional view through the side of a metallic window frame, taken on the line X, X of Fig. 2, showing my improved arrangement of sash weights and chains; and Fig. 2 is a view, from within, of a window frame, partly in section on the line Y, Y of Fig. 1, and with its sashes also partly in section, and being provided with my improved system of weights and chains; and Fig. 3 is a view of the chain trip, taken at right angles to Fig. 1. Figs. 1 and 2 have portions broken out to condense the figures.

The same reference numbers indicate the same parts in all the figures.

The window frame 1 is formed of sheet metal and is provided with suitable grooves for the reception of the upper sash 2 and the lower sash 3. The frame also carries grooved rollers 4, 4, over which run chains 5, 5 and 6, 6, to which are respectively attached the weights 7, 7 and 8, 8. The chains 5, 5 are carried down throughthe side of the lower sash and secured at the bottom thereto by a fusible link 9, placed in an opening in the foot of the sash. One of the chains 5 is also provided with a fusible link 10, above the top of the sash.

One of the chains 6, of the upper sash, passes loosely through a hole in a supplementary weight 11, which is normally suspended by a chain 12, running over rollers 13, 13 and being fastened at the bottom by a ring or link 14, which is slipped over a pin 15, in the bottom of the frame. A forked arm 16, pivoted at 17, embraces the pin 15, behind the ring 14, so that, when the arm 16, is thrown forward, as it will be by v depression of its extension 18, it will push the ring 14 off of the pin 15.

At 19, I have shown an opening through the frame which is temporarily covered by I Specification of Letters Patent.

Application filed April 12, 1911.

Patented Nov. '7, 1911.

Serial No. 620,547.

a plate 20; and this plate may be removed in case of necessity to afford access to the chain 12 and its bearings 13, 13.

Normally the sashes are operated in the usual manner, being balanced by their appropriate weights 7, 7 and 8, 8. If, however, a fire occurs which melts either of the fusible links 9 or 10, the chain 5, will be thereby broken or released and its weight 7 will drop to the bottom of the frame, striking, in its descent, the bell-crank arm 18, throwing forward the arm 16 so as to push the ring 14 off of the pin 15, freeing the chain 12 and allowing the supplementary weight 11 to drop upon the top of the weight 8 and by its increased load quickly close the upper sash 2, if it has been lowered at the time; and, simultaneously, the lower sash, having been released by'one of its counter weights, drops to the bottom of the frame, efltectually closing the window.

The supplementary weight 11 may be raised into its normal position again by pulling down the upper sash 2 which will raise its counter weight 8 and push up the supplementary weight 11; and the chain 12, may then be again fastened to the pin 15, access being had to the interior of the frame by removing the detachable portion of the frame (not shown) through which the sash weight is ordinarily reached.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States, is

1. The combination, with a window frame, provided with an upper sash and a lower sash and counter-weights therefor, of a supplementary counter-weight for the upper sash normally disconnected therefrom, and thermally-actuated means for causing an abnormal movement of a lower sash weight whereby the upper sash is brought under the influence of the supplement'ary weight.

2. The combination, with a window frame, provided with an upper sash and a lower sash and counter-weights therefor, of a supplementary counter-weight for the upper sash normally disconnected therefrom, and thermally-actuated means for causing an abnormal movement of a lower sash weight whereby the upper sash is brought under the influence of the supplementary weight and the lower sash is released from the influence of its said counter-weight.

3. The combination, with a window frame, of a vertically moving sash therein, a primary counter-Weight, a supplementary counter-weight, a flexible connection between the primary counter-Weight and the sash passing freely through the supplementary counter-weight, means, consisting of a flexible member detachably attached Within the frame, for suspending the sup plement'ary counter-Weight free of the primary counter-weight, and automatically actuated means embodying a bell-crank for releasing said flexible member and thereby imposing the supplementary Weight upon the primary Weight.

4. The combination, With a Window frame, of a vertically moving sash therein, a primary counter-Weight, a supplementary counter-Weight, a flexible connection between the primary counter-Weight and the sash passing freely through the supple mentary counter-Weight, means, consisting of a chain detachably attached to a detent Within the frame, for suspending the supplementary counter-Weight free of the primary counter-Weight, and automatically actuated means embodying a bell-crank for releasing said flexible member and thereby imposing the supplementary Weight upon the primary Weight.

5. The combination, With a Window frame, of tWo vertically moving sashes therein, a primary counter-Weight for each sash, a supplementary counter-Weight for the upper sash, flexible connections between said primary counter-Weights and sashes, means for independently suspending the supplementary counter-Weight, and means, actuated by an abnormal movement of the lower-sash counterweight, for releasing the supplementary counter-Weight and thereby imposing its burden upon the upper sash.

ELOF R. LEONARD.

lVitnesses HOWARD M. ROWE, AGNES SCHAEFER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

